Tree House by Architektur 109
Via @muuuz, a copper-clad home extension for a traditional house in Ludwigsburg, Germany. "The distinguishing feature of this new building is its view of the garden and the top of the walnut tree. It creates a window to nature, opening up a resplendent panorama of the Neckar Valley and allowing an entirely new view of the surrounding countryside." More at Architektur 109.